CVE-2026-32605
Nimiq: Remote crash via off-by-one signer bounds check in proposal buffer
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
13th
nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.3.0, an untrusted peer could crash a validator by publishing a signed tendermint proposal message where signer == validators.num_validators(). ProposalSender::send uses > instead of >= for the signer bounds check, so the equality case passes and reaches validators.get_validator_by_slot_band(signer), which panics with an out-of-bounds index before any signature verification runs. This issue has been fixed in version 1.3.0.
| CWE | CWE-125 CWE-193 |
| Vendor | nimiq |
| Product | core-rs-albatross |
| Published | Apr 13, 2026 |
| Last Updated | Apr 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
nimiq / core-rs-albatross
< 1.3.0
References
github.com: https://github.com/nimiq/core-rs-albatross/security/advisories/GHSA-g99c-h7j7-rfhv github.com: https://github.com/nimiq/core-rs-albatross/pull/3661 github.com: https://github.com/nimiq/core-rs-albatross/commit/9199364b60c7acae4219800d194bbe07d2997b8c github.com: https://github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0